US4640399A - Axially engaging twin plate friction clutch with adjustment means - Google Patents

Axially engaging twin plate friction clutch with adjustment means Download PDF

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Publication number
US4640399A
US4640399A US06/668,988 US66898884A US4640399A US 4640399 A US4640399 A US 4640399A US 66898884 A US66898884 A US 66898884A US 4640399 A US4640399 A US 4640399A
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US
United States
Prior art keywords
clutch
plate
intermediate plate
pressure plate
finger
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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US06/668,988
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English (en)
Inventor
Tore L. Borjesson
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Volvo AB
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Volvo AB
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Filing date
Publication date
Application filed by Volvo AB filed Critical Volvo AB
Assigned to AB VOLVO GOTEBORG, SWEDEN reassignment AB VOLVO GOTEBORG, SWEDEN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BORJESSON, TORE L.
Application granted granted Critical
Publication of US4640399A publication Critical patent/US4640399A/en
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Expired - Fee Related legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/385—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs double clutches, i.e. comprising two friction disc mounted on one driven shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
    • F16D2013/706—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members the axially movable pressure plate is supported by leaf springs

Definitions

  • the present invention relates to a vehicle clutch assembly of the kind which comprises a clutch housing which can be connected to a flywheel, two clutch plates which can be connected to an output shaft, an intermediate plate which is arranged to press the one clutch plate against a surface on the flywheel and which is coupled to the clutch housing via an axially acting spring means, a pressure plate which is arranged to press the other clutch plate against the intermediate plate and which is spring-biassed in a direction theretowards, disengaging means for moving the pressure plate away from said clutch plate, and means connected to the intermediate plate for centering said intermediate plate between the clutch plates when the clutch is disengaged.
  • the intermediate plate is biassed by plate springs towards the rearwardly located clutch plate.
  • Centering means in the form of finger-like elements connected with the intermediate plate engage with axial clearance in grooves located in the clutch housing and limit the movement of the intermediate plate in the clutch disengaging direction. Consequently, when disengaging the clutch, the springs urge the intermediate plate rearwardly out of frictional engagement with the forward clutch plate.
  • the force which must be generated by the springs is of such high magnitude that the clutch plates become unevenly worn.
  • the object of the invention is to provide a vehicle clutch assembly of the aforesaid kind which is designed to solve the aforementioned problems relating to the uneven take-up of torque and the uneven wear on the clutch plates.
  • This object is realized in accordance with the invention by arranging for the spring means acting between the clutch housing and the intermediate plate to bias said intermediate plate in a direction towards the first clutch plate, and by providing the centering means, between the pressure plate and the intermediate plate, with dogging means so arranged that--departing from a fully engaged clutch--the pressure plate, when disengaging the clutch, is movable through a given limited distance in the clutch-disengaging direction prior to dogging of the intermediate plate.
  • the direction in which the forces exerted by the springs act upon the intermediate plate is reversed in relation to that of the known clutch assembly, and dogging means are arranged between the pressure plate and the intermediate plate.
  • the pressure plate and the intermediate plate initially move synchronously with one another at a constant distance apart.
  • the pressure plate as a result of the clearance between said plate and the dogging means, can move further forwards through a short distance, to complete engagement of the clutch, by finally pressing the clutch plates and the intermediate plate between the flywheel and the pressure plate.
  • FIG. 1 is a longitudinal sectional view of one embodiment of a clutch according to the invention in a clutch engaged position
  • FIG. 2 illustrates the clutch of FIG. 1 when disengaged
  • FIG. 3 is a view taken on the line III--III of FIG. 1;
  • FIG. 4 is a view taken on the line IV--IV of FIG. 2.
  • the reference 1 identifies a flywheel which is screwed firmly onto the crankshaft 2 of an engine.
  • Firmly connected to the flywheel with the aid of bolts is a clutch housing which comprises two mutually connected sections 3 and 4.
  • the clutch housing 3,4 encloses a pressure plate 5, an intermediate plate 6, and a forward and a rearward clutch plate 7 and 8, both of which are joined by means of a spline coupling to an output shaft 9 (input shaft to the gearbox).
  • the pressure plate is coupled to the clutch housing in a conventional manner for relative axial, but not relative rotational movement, and is biassed towards the flywheel by means of a cup-spring, or Belleville spring 10, which engages a clutch-disengaging bearing 11.
  • the intermediate plate 6 is connected to the clutch housing 3,4 by means of a plurality of peripherally distributed plate springs 12, of which one is shown in FIG. 4.
  • the springs 12 bias the intermediate plate 6 in a direction towards the flywheel.
  • the pressure plate 5 has provided thereon a peripheral groove 13, in which a plurality of fingers 14 engage, these fingers being uniformly distributed circumferentially.
  • the fingers 14 are respectively joined to the intermediate plate 6 with the aid of a friction means, which is generally shown at 15 in FIG. 1 and which includes a pin 16 which extends, with clearance, through a hole 17 in the finger 14.
  • a friction means which is generally shown at 15 in FIG. 1 and which includes a pin 16 which extends, with clearance, through a hole 17 in the finger 14.
  • Friction elements 18 Arranged on both sides of the finger are friction elements 18, which are urged against the finger 14 by means of cup springs 19 or Belleville spring washers placed beneath a head 20 on the pin 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
US06/668,988 1983-11-08 1984-11-06 Axially engaging twin plate friction clutch with adjustment means Expired - Fee Related US4640399A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8306131 1983-11-08
SE8306131A SE8306131L (sv) 1983-11-08 1983-11-08 Motorfordonskoppling

Publications (1)

Publication Number Publication Date
US4640399A true US4640399A (en) 1987-02-03

Family

ID=20353228

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/668,988 Expired - Fee Related US4640399A (en) 1983-11-08 1984-11-06 Axially engaging twin plate friction clutch with adjustment means

Country Status (5)

Country Link
US (1) US4640399A (de)
DE (1) DE3440697A1 (de)
FR (1) FR2554535B1 (de)
GB (1) GB2149463B (de)
SE (1) SE8306131L (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302698A (en) * 1978-09-22 1981-11-24 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen M.B.H. Dual-filament halogen incandescent lamp, particularly sealed-beam, automotive headlight
US4848554A (en) * 1986-12-08 1989-07-18 Kabushiki Kaisha Daikin Seisakusho Intermediate plate positioning mechanism for twin clutch
US5054597A (en) * 1989-12-29 1991-10-08 Dana Corporation Adapter clip for friction clutch having intermediate plate positioning means
US5080212A (en) * 1990-12-20 1992-01-14 501 Dana Corporation Positioning pin setting arrangement
US5170873A (en) * 1990-03-01 1992-12-15 Kabushibu Kaisha Daikin Seisakusho Clutch cover assembly for twin clutch
US6039161A (en) * 1998-02-19 2000-03-21 Exedy Corporation Twin-clutch device
US20110132714A1 (en) * 2009-11-02 2011-06-09 Tnmj Caliber, Llc Friction clutch system
US10138955B2 (en) * 2016-08-04 2018-11-27 Ford Global Technologies, Llc Depressible pins clutch pack assembly with separator spring

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417224A1 (de) * 1984-05-10 1985-11-14 Fichtel & Sachs Ag, 8720 Schweinfurt Reibungskupplung mit zwangsabhub der anpressplatte
DE3525486C2 (de) * 1985-07-17 1994-03-24 Fichtel & Sachs Ag Druckplatte für eine Mehrscheibenkupplung mit zwangsweise gesteuertem Abhub der Zwischenplatten
FR2599445B1 (fr) * 1986-06-03 1988-08-05 Valeo Embrayage bidisques, notamment pour vehicule automobile
DE3707918C2 (de) * 1987-03-12 1996-01-25 Fichtel & Sachs Ag Zweischeibenkupplung mit gesteuertem Zwangsabhub
DE3726342A1 (de) * 1987-08-07 1989-02-16 Fichtel & Sachs Ag Zweischeiben-kupplung mit zwischenplattensteuerung
DE3738423A1 (de) * 1987-11-12 1989-05-24 Fichtel & Sachs Ag Mehrscheibenkupplung mit lueftwegbegrenzung der zwischenplatte
FR2693244B1 (fr) * 1992-07-01 1994-08-05 Valeo Embrayage a friction pour vehicule automobile et diaphragme elastique pour un tel embrayage.
GB2346939A (en) * 1999-02-16 2000-08-23 Lipe Limited Intermediate clutch plate biasing means
DE10006271A1 (de) * 2000-02-12 2001-08-16 Bayerische Motoren Werke Ag Ein- oder Mehrscheibenkupplung für Schaltgetriebe
FR2978220B1 (fr) 2011-07-22 2013-07-05 Valeo Embrayages Embrayage bi-disque a element d'appui embouti

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257877A (en) * 1939-06-24 1941-10-07 Binder Richard Disk clutch
US2385517A (en) * 1944-01-19 1945-09-25 Gen Motors Corp Clutch
US2812046A (en) * 1955-05-25 1957-11-05 Taylor Leonard Friction clutches or brakes
US3554342A (en) * 1968-12-23 1971-01-12 Borg Warner Torque transmitting device
US3561577A (en) * 1968-03-23 1971-02-09 Fichtel & Sachs Ag Multiple disc clutch with automatic wear adjuster
GB1456149A (en) * 1974-06-21 1976-11-17 Automotive Prod Co Ltd Friction clutches
US4257502A (en) * 1977-11-17 1981-03-24 Fichtel & Sachs Ag Disk clutch with two driven disks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850845C (de) * 1944-01-19 1952-09-29 Gen Motors Corp Reibungskupplung, insbesondere fuer Kraftfahrzeuge
US3086634A (en) * 1959-10-16 1963-04-23 Borg Warner Clutches
DE2932009A1 (de) * 1979-08-07 1981-03-26 LuK Lamellen und Kupplungsbau GmbH, 77815 Bühl Reibungskupplung, insbesondere fuer kraftfahrzeuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257877A (en) * 1939-06-24 1941-10-07 Binder Richard Disk clutch
US2385517A (en) * 1944-01-19 1945-09-25 Gen Motors Corp Clutch
US2812046A (en) * 1955-05-25 1957-11-05 Taylor Leonard Friction clutches or brakes
US3561577A (en) * 1968-03-23 1971-02-09 Fichtel & Sachs Ag Multiple disc clutch with automatic wear adjuster
US3554342A (en) * 1968-12-23 1971-01-12 Borg Warner Torque transmitting device
GB1456149A (en) * 1974-06-21 1976-11-17 Automotive Prod Co Ltd Friction clutches
US4257502A (en) * 1977-11-17 1981-03-24 Fichtel & Sachs Ag Disk clutch with two driven disks

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302698A (en) * 1978-09-22 1981-11-24 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen M.B.H. Dual-filament halogen incandescent lamp, particularly sealed-beam, automotive headlight
US4848554A (en) * 1986-12-08 1989-07-18 Kabushiki Kaisha Daikin Seisakusho Intermediate plate positioning mechanism for twin clutch
US5054597A (en) * 1989-12-29 1991-10-08 Dana Corporation Adapter clip for friction clutch having intermediate plate positioning means
US5170873A (en) * 1990-03-01 1992-12-15 Kabushibu Kaisha Daikin Seisakusho Clutch cover assembly for twin clutch
US5080212A (en) * 1990-12-20 1992-01-14 501 Dana Corporation Positioning pin setting arrangement
AU635698B2 (en) * 1990-12-20 1993-03-25 Dana Corporation Positioning pin setting arrangement
US6039161A (en) * 1998-02-19 2000-03-21 Exedy Corporation Twin-clutch device
US20110132714A1 (en) * 2009-11-02 2011-06-09 Tnmj Caliber, Llc Friction clutch system
US8978857B2 (en) * 2009-11-02 2015-03-17 Tnmj Caliber, Llc Friction clutch system
US10138955B2 (en) * 2016-08-04 2018-11-27 Ford Global Technologies, Llc Depressible pins clutch pack assembly with separator spring

Also Published As

Publication number Publication date
GB2149463B (en) 1987-02-04
SE8306131D0 (sv) 1983-11-08
FR2554535B1 (fr) 1990-06-08
GB8427648D0 (en) 1984-12-05
SE8306131L (sv) 1985-05-09
GB2149463A (en) 1985-06-12
DE3440697A1 (de) 1985-05-15
FR2554535A1 (fr) 1985-05-10

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Owner name: AB VOLVO GOTEBORG, SWEDEN

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Effective date: 19841101

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Effective date: 19950208

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362